CefRequestHandlerOnBeforeResourceLoad Method

Called on the IO thread before a resource request is loaded. The |request| object may be modified. Return RV_CONTINUE to continue the request immediately. Return RV_CONTINUE_ASYNC and call CefRequestCallback:: Continue() at a later time to continue or cancel the request asynchronously. Return RV_CANCEL to cancel the request immediately.

protected virtual CefReturnValue OnBeforeResourceLoad(
	CefBrowser browser,
	CefFrame frame,
	CefRequest request,
	CefRequestCallback callback
)